Americans' obsession with guns are killing us. Other countries don't have this problem, why do we insist on clinging to 19th century justice and neanderthal attitudes?
These seem to be hot sellers in my neck of the woods. I suppose they could offer some kind of protection from bullets. Probably less good for already over loaded child backs and knees.
I suspect they are little more than personal paranoia enhancement devices (PPEDs). As long as we venerate guns as demi-gods and pretend they are toys instead of instruments of destruction, too many people will miss-use them.
The answer is to get rid of the guns, not send our kids to school packing kevlar.